CVE-2018-7771 Path traversal in U.Motion

High 8.0 Published Updated

A directory traversal flaw in Schneider Electric U.motion Builder allows authenticated users to write arbitrary PHP files, potentially leading to remote code execution.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2018-7771?

CVE-2018-7771 is a high-severity path traversal vulnerability in Schneider Electric SE U.Motion, published on 3 Jul 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The vulnerability exists within processing of editscript.php in Schneider Electric U.motion Builder software versions prior to v1.3.4. A directory traversal vulnerability allows a caller with standard user privileges to write arbitrary php files anywhere in the web service directory tree.

Weakness: CWE-22

Which versions are affected by CVE-2018-7771?

It affects 1 product.

Products include Schneider-Electric U.motion Builder.

How do I fix CVE-2018-7771?

No fix has been published for CVE-2018-7771 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2018-7771 being exploited?

There is no known exploitation of CVE-2018-7771 in the wild and no public exploit code.

Sources

Also known as GHSA-47fv-mm82-vwwx.

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